Red Hat Bugzilla – Bug 1006474
Illegal instruction - _armv7_neon_probe () from /lib/libcrypto.so.10
Last modified: 2015-06-29 08:21:35 EDT
Description of problem:
When attempting to enter form data in konqueror on ARM it will crash.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Boot F20 Alpha-TC5 on a Trimslice.
2. Launch Konqueror and browse to google. Try and enter form data.
First keystroke will crash konqueror
successful form entry.
After installing debug packages and using gdb to run konqueror I recieved the following output:
Starting program: /usr/bin/konqueror
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/libthread_db.so.1".
Program received signal SIGILL, Illegal instruction.
0xb4d70fe0 in _armv7_neon_probe () from /lib/libcrypto.so.10
This bug seems to only show itself when launching konqueror through gdb.
The form data entry reported here is irrelevant and another bug has been opened.
Maybe gdb somehow messes up the SIGILL signal blocking?
Does the openssl s_client and other apps that use openssl work normally?
It might be interaction of konqueror and the fact that openssl now initializes things (including the CPU capabilities) in a library constructor function.
Paul, should we close this bug as my understanding is that the real cause is tracked in bug #1006539 now?
Dan, Tomas: gdb does "mess" up suppressing signals so it can catch them itself. The patch I sent upstream and committed works around this by avoiding using SIGILL handling (which libraries really should *not* be doing anyway) to detect arm cpu features.
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